Re: test9 not using buffers

From: Thorsten Kranzkowski (th@Marvin.DL8BCU.ampr.org)
Date: Thu Oct 12 2000 - 13:53:29 EST

On Wed, Oct 11, 2000 at 09:04:07PM -0400, Alexander Viro wrote:
> On Thu, 12 Oct 2000, Tom Holroyd wrote:
>
> > Alpha DP264 (UP), SCSI, floppy
> >
> > If I do a dd if=/dev/zero of=/tmp/moo count=100000, I don't see any
> > increase in buffers, as reported by vmstat. Furthermore, if I read from
> > /dev/fd0, it used to buffer the whole thing, so a second read would be
> > fast -- now it hits the floppy again.
> >

Huh - your floppy is working?

Mine does not (with 2.4.0pre10-test1 that is):

[Marvin:~#] dd if=/dev/fd0 |od -c |more
2880+0 records in
2880+0 records out
0000000 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0
*
5500000
[Marvin:~#]

This floppy currently holds my MILO image so output is definitively wrong :-)
I also saw pure random data (fragments from libc etc.) on different runs.

AXPpci33 ev4 UP
gcc version 2.96 20000925 (experimental)

>

Bye,
Thorsten 

-- 
| Thorsten Kranzkowski        Internet: dl8bcu@gmx.net                        |
| Mobile: ++49 170 1876134       Snail: Niemannsweg 30, 49201 Dissen, Germany |
| Ampr: dl8bcu@db0lj.#rpl.deu.eu, dl8bcu@marvin.dl8bcu.ampr.org [44.130.8.19] |
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